Clamping, how long does the expansion stays after a session?

While clamping you’d get a good amount of expansion, some hours later you’d still have some expansion left but not as much as while clamping.
I clamped 2 days ago and I measured +0.1” in midshaft today.
So, could that be the temporary expansion you get from clamping lasting two days?

I’ve just clamped 3 times, I don’t think that I’ve gained 0.1” by that.